You can put this solution on YOUR website! Let = liters of 15% acid needed
Let = liters of 33% acid needed = liters of acid in 15% solution = liters of acid in 33% solution
---------------------------------
(1)
(2)
----------------------------
(2)
(2)
(2)
---------------------
Multiply both sides of (1) by
and subtract (1) from (2)
(2)
(1)
and, since
(1)
(1)
26.667 liters of 15% acid are needed
13.333 liters of 33% acid are needed
check:
(2)
(2)
(2)
(2)
(2)
Error must be due to rounding off
